In which county is ZIP code 19890 located?

ZIP 19890 is listed under New Castle, DE.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 19890: Wilmington, DE

ZIP: 19890

County: New Castle

Coordinates: 39.56450, -75.59700

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Get a reliable snapshot of the Wilmington, DE postal area 19890. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Wilmington
ZIP Code	19890
County	New Castle
State	DE
Latitude / Longitude	39.56450, -75.59700
ZIP Type	Standard
Time Zone	Eastern Time (ET)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 19890 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 19890 is approximately 39.56450 (latitude) and -75.59700 (longitude). This location sits within New Castle, contributing to regional planning across DE.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 19890 for mail delivery and general location reference in New Castle, DE.

This ZIP may extend beyond the city core into nearby communities within New Castle.

Related ZIP Codes (Nearby)

Explore other postal codes near Wilmington within DE.

Frequently Asked Questions

What is the primary city for ZIP code 19890?

The primary city for this ZIP code is Wilmington, located in DE.

In which county is 19890 located?

ZIP code 19890 is situated within New Castle, DE.

What are the coordinates for 19890?

The approximate center point is 39.56450 (Latitude) and -75.59700 (Longitude).

Is ZIP code 19890 active?

This page lists ZIP 19890 as Listed based on the latest refresh date shown above.

Does ZIP 19890 cover multiple areas?

Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.

Methodology & Data Notes

How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.

Page updated: 2026-01-08